CEC/ICMC 2025 Abstracts & Technical Program

Session

M2Or2A - Low Temperature Properties of Austenitic and Maraging Steels

May 20, 2025, 11:15 AM

Naples 4/5

Conveners

M2Or2A - Low Temperature Properties of Austenitic and Maraging Steels

• Karl Hartwig
• Shreyas Balachandran

327. M2Or2A-01: Numerical and Experimental Investigation of Deformation Induced Martensitic Transformation in Fused Filament Fabricated Austenitic Stainless Steel for Cryogenic Applications

Daniela Schob

5/20/25, 11:15 AM

Contributed Oral

Cryogenic structural components, such as collars, bladders, keys for superconducting magnets, and elements of liquid hydrogen storage systems like hoses and valves, are frequently constructed from austenitic stainless steel due to its favorable properties. However, manufacturing these components using traditional methods is challenging due to their complex geometries. Additive manufacturing...

436. M2Or2A-02: Electromagnetic properties of austenitic stainless steels in cryogenic, high magnetic field environments

Polina Ermoshkina (Commonwealth Fusion Systems)

5/20/25, 11:30 AM

Contributed Oral

Commonwealth Fusion Systems (CFS) is developing a high-field, compact tokamak, SPARC, enabled by REBCO-based high temperature superconducting (HTS) magnets. For the toroidal field magnetic coils, the REBCO tape is housed in austenitic stainless steel radial plates. The structural loads on the radial plates from Lorentz forces are extremely high during operation. Austenitic stainless steels are...

445. M2Or2A-03: Low-Temperature Fatigue and Fracture Properties of Maraging C250 Steel

Mr Robert Walsh (Materials Reliability Inc.)

5/20/25, 11:45 AM

Contributed Oral

Maraging steels are attractive alloys for engineering applications requiring high strength, good fatigue, and fracture properties. Although Maraging steel is usually used in room temperature or elevated temperature applications, it has found a place in cryogenic applications. Cryogenic data for maraging steels in the literature is limited. Since it is a precipitate-hardened martensitic steel,...

380. M2Or2A-04: First Approximation for Unified Fatigue Models for 316 Stainless Steel and IN718 Materials at 4K, 77K & 293K from Monotonic Material Properties

Raymond Kersey (Advanced Fracture Mechanics Associates LLC)

5/20/25, 12:00 PM

Contributed Oral

Fusion applications utilizing magnets require the use of materials that are capable of withstanding the cyclic electromagnetic forces during startup and shutdown at cryogenic temperatures. Because of the cyclic nature of loading, a fatigue model is essential to characterize the capability of these parts to determine operational life and prevent premature component failure. Thus, there is a...

230. M2Or2A-05: In-Situ Monitoring of Strain Field Evolution and Dissipative Effects at Cryogenic Temperatures (77K): Insights into Advanced Materials for Superconducting and Hydrogen Storage Applications

Jakub Tabin (Institute of Fundamental Technological Research PAS)

5/20/25, 12:15 PM

Contributed Oral

The in-situ monitoring of strain field evolution and dissipative effects in advanced materials at cryogenic temperatures represents a significant milestone in understanding thermo-mechanical behaviour under extreme conditions. This research focuses on conducting full-field strain measurements at liquid nitrogen (77K) temperatures using an innovative DIC-enhanced experimental platform. Two type...

489. M2Or2A-06: In-Situ and In-Operando Monitoring of Laser and Electron Beam Welding Processes for Austenitic Stainless Steels

Boyd Panton (The Ohio State University)

5/20/25, 12:30 PM

Contributed Oral

Laser and electron beam welding processes are advanced manufacturing technologies that are critical for the high precision and complex geometries prevalent in cryogenic systems. Implementation of these technologies is currently reliant on high skilled labor. Furthermore, designs are pushing the process physics and the material properties to their limits. In-situ and in-operando monitoring is...